Added RCov task and brought test coverage up to 100%.

Rakefile

@@ -16,3 +16,27 @@ Hoe.new("friendly_id", FriendlyId::Version::STRING) do |p|
   p.rdoc_pattern = /^(lib|bin|ext)|txt|rdoc$/
   changes = p.paragraphs_of('History.txt', 0..1).join("\n\n")
 end
+
+desc "Run RCov"
+task :rcov do
+  run_coverage Dir["test/**/*_test.rb"]
+end
+
+def run_coverage(files)
+  rm_f "coverage"
+  rm_f "coverage.data"
+  if files.length == 0
+    puts "No files were specified for testing"
+    return
+  end
+  files = files.join(" ")
+  if PLATFORM =~ /darwin/
+    exclude = '--exclude "gems/"'
+  else
+    exclude = '--exclude "rubygems"'
+  end
+  rcov = "rcov -Ilib:test --sort coverage --text-report #{exclude} --no-validator-links"
+  cmd = "#{rcov} #{files}"
+  puts cmd
+  sh cmd
+end

test/string_helpers_test.rb

@@ -37,7 +37,7 @@ def test_to_friendly_id_should_strip_leading_slashes
   def test_to_friendly_id_should_not_modify_valid_name_strings
     assert_match /a-b-c-d/, "a-b-c-d".to_friendly_id
   end
-  
+
   # These strings are taken from various international Google homepages. I
   # would be most grateful if a fluent speaker of any language that uses a
   # writing system other than the Roman alphabet could help me make some
@@ -47,7 +47,7 @@ def test_to_friendly_id_works_with_non_roman_chars
     assert_equal "דפים-מישראל", "דפים מישראל".to_friendly_id
     assert_equal "لبحث-في-ويب", "لبحث في ويب".to_friendly_id
   end
-  
+
   def test_strip_diactics_correctly_strips_diacritics
     input  = "ÀÁÂÃÄÅÆÇÈÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýþÿ"
     output = Slug::strip_diacritics(input).split(//)
@@ -57,4 +57,10 @@ def test_strip_diactics_correctly_strips_diacritics
     end
   end
 
+  def test_strip_diacritics_in_place
+    string = "á"
+    string.strip_diacritics!
+    assert_equal "a", string
+  end
+
 end